/*
 * ProGuard -- shrinking, optimization, obfuscation, and preverification of Java bytecode.
 *
 * Copyright (c) 2002-2018 GuardSquare NV
 *
 * This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public
 * License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later
 * version.
 *
 * This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied
 * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License along with this program; if not, write to the Free
 * Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
 */
package proguard.classfile.attribute;

import proguard.classfile.*;
import proguard.classfile.attribute.visitor.*;

/**
 * This Attribute represents a local variable table attribute.
 *
 * @author Eric Lafortune
 */
public class LocalVariableTableAttribute extends Attribute {
    public int u2localVariableTableLength;
    public LocalVariableInfo[] localVariableTable;

    /**
     * Creates an uninitialized LocalVariableTableAttribute.
     */
    public LocalVariableTableAttribute() {}

    /**
     * Creates an initialized LocalVariableTableAttribute.
     */
    public LocalVariableTableAttribute(int u2attributeNameIndex, int u2localVariableTableLength,
        LocalVariableInfo[] localVariableTable) {
        super(u2attributeNameIndex);

        this.u2localVariableTableLength = u2localVariableTableLength;
        this.localVariableTable = localVariableTable;
    }

    // Implementations for Attribute.

    public void accept(Clazz clazz, Method method, CodeAttribute codeAttribute, AttributeVisitor attributeVisitor) {
        attributeVisitor.visitLocalVariableTableAttribute(clazz, method, codeAttribute, this);
    }

    /**
     * Applies the given visitor to all local variables.
     */
    public void localVariablesAccept(Clazz clazz, Method method, CodeAttribute codeAttribute,
        LocalVariableInfoVisitor localVariableInfoVisitor) {
        for (int index = 0; index < u2localVariableTableLength; index++) {
            // We don't need double dispatching here, since there is only one
            // type of LocalVariableInfo.
            localVariableInfoVisitor.visitLocalVariableInfo(clazz, method, codeAttribute, localVariableTable[index]);
        }
    }
}
